# Relationship history for MSHA mine 4300773

Current hierarchy: **Lorraine  Gosselin; Michael  Gosselin → RG Gosselin, Inc. → Derby Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** RG Gosselin, Inc. → Derby Pit; 2015-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lorraine  Gosselin et al → Derby Pit; 2015-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lorraine  Gosselin et al → RG Gosselin, Inc.; 2015-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Gosselin et al → RG Gosselin, Inc.; 2015-11-18 to current/open; source msha-controller-operator-history